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See :hover state in Chrome Developer Tools
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Now you can see both the pseudo-class rules and force them on elements.
To see the rules like :hover in the Styles pane click the small :hov text in the top right.
To force an element into :hover state, right click it an...
What LaTeX Editor do you suggest for Linux? [closed]
...awkward to the point that I'd rather work with the LaTeX source. I don't know if it was poorly implemented or I just have a fundamental aversion to WYSIWYG LaTeX.
– Joel Wietelmann
Aug 5 '09 at 19:04
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GitHub: How to make a fork of public repository private?
...Creates a merge commit
git push origin master
Awesome, your private repo now has the latest code from the public repo plus your changes.
Finally, to create a pull request private repo -> public repo:
Use the GitHub UI to create a fork of the public repo (the small "Fork" button at the top r...
How to move Jenkins from one PC to another
...evelopment PC. I installed it on my development PC, because I had limited knowledge on this tool; so I tested on it in my development PC. Now, I feel comfortable with Jenkins as my long term "partner" in the build process and would like to "move" this Jenkins to a dedicated server.
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MySQL Removing Some Foreign keys
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This was my problem. I feel kind of dumb now. If anyone else has this problem, you can find the Foreign Key Constraint names by using the SHOW CREATE TABLE function.
– Drew
May 8 '09 at 6:06
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Creating a textarea with auto-resize
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It does! Made a jsfiddle for ya: jsfiddle.net/CbqFv It now works in Chrome, Firefox, and IE8 - although it is a little glitchy in IE8. As you increase or decrease number of lines it freaks out a little. As you might have seen in the autoresize plugin for jQuery, they work around ...
Rails: convert UTC DateTime to another time zone
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zone = ActiveSupport::TimeZone.new("Central Time (US & Canada)")
Time.now.in_time_zone(zone)
or just
Time.now.in_time_zone("Central Time (US & Canada)")
You can find the names of the ActiveSupport time zones by doing:
ActiveSupport::TimeZone.all.map(&:name)
# or for just US
Active...
Why should I use a pointer rather than the object itself?
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Remember that s/copy/move/ in many places now. Returning an object definitely does not imply a move. You should also note that accessing an object through a pointer is orthogonal to how it was created.
– Puppy
Mar 3 '14 at 12:10...
Quicksort vs heapsort
...ant, which
switches to heapsort when a bad case
is detected. If it is known in advance
that heapsort is going to be
necessary, using it directly will be
faster than waiting for introsort to
switch to it.
share
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Specifying column name in a “references” migration
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Do it manually:
add_column :post, :author_id, :integer
but now, when you create the belongs_to statement, you will have to modify it, so now you have to call
def post
belongs_to :user, :foreign_key => 'author_id'
end
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